DNA SEQUENCING IN HYDROLINK MATRICES - EXTENSION OF READING-ABILITY TO GREATER-THAN 600 NUCLEOTIDES

被引:8
作者
GELFI, C
CANALI, A
RIGHETTI, PC
VEZZONI, P
SMITH, C
MELLON, M
JAIN, T
SHORR, R
机构
[1] AT BIOCHEM,30 SPRING MILL DR,MALVERN,PA
[2] UNIV MILAN,DEPT BIOMED & TECHNOL,I-20122 MILAN,ITALY
[3] CNR,IST TECNOL BIOMED AVANZATE,I-20133 MILAN,ITALY
关键词
D O I
10.1002/elps.1150110802
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
All the systems for optimizing DNA sequencing published so far have introduced modifications regarding: (i) linearization of band migration via ionic strength gradients or wedge‐shaped gels; (ii) automatization of band reading via introduction of fluorescent probes; (iii) direct blotting analysis; (iv) pulsed electric fields and (v) discontinuous buffer systems. In all these systems, DNA sequence reading with an accuracy of ca. 98 % rarely exceeds a length of 350 bases. We have chosen, in order to increase the reading ability of a single gel, to manipulate the characteristics of the gel matrix. The Seq‐HydroLink gel formulation here reported allows optimal reading, from a single gel run, of at least 600 bases. In order to guarantee this reading ability in a single run, the upper and lower ends of the ladder are time‐resolved, i. e. the same sample is applied to the gel matrix at three different time intervals. The present system represents an increase of at least 30 % in reading ability as compared with any type of polyacrylamide gel formulation so far reported. Copyright © 1990 VCH Verlagsgesellschaft mbH
引用
收藏
页码:595 / 600
页数:6
相关论文
共 21 条
[1]   A NONRADIOACTIVE AUTOMATED-METHOD FOR DNA-SEQUENCE DETERMINATION [J].
ANSORGE, W ;
SPROAT, BS ;
STEGEMANN, J ;
SCHWAGER, C .
JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS, 1986, 13 (06) :315-323
[2]   FIELD GRADIENTS IMPROVE RESOLUTION ON DNA SEQUENCING GELS [J].
ANSORGE, W ;
LABEIT, S .
JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS, 1984, 10 (3-4) :237-243
[3]   FRACTIONATION TECHNIQUES IN A HYDRO-ORGANIC ENVIRONMENT .2. ACRYLOYL-MORPHOLINE POLYMERS AS A MATRIX FOR ELECTROPHORESIS IN HYDRO-ORGANIC SOLVENTS [J].
ARTONI, G ;
GIANAZZA, E ;
ZANONI, M ;
GELFI, C ;
TANZI, MC ;
BAROZZI, C ;
FERRUTI, P ;
RIGHETTI, PG .
ANALYTICAL BIOCHEMISTRY, 1984, 137 (02) :420-428
[4]   DNA SEQUENCING WITH DIRECT BLOTTING ELECTROPHORESIS [J].
BECK, S ;
POHL, FM .
EMBO JOURNAL, 1984, 3 (12) :2905-2909
[5]   BUFFER GRADIENT GELS AND S-35 LABEL AS AN AID TO RAPID DNA-SEQUENCE DETERMINATION [J].
BIGGIN, MD ;
GIBSON, TJ ;
HONG, GF .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES, 1983, 80 (13) :3963-3965
[6]   A SIMPLE DISCONTINUOUS BUFFER SYSTEM FOR INCREASED RESOLUTION AND SPEED IN GEL-ELECTROPHORETIC ANALYSIS OF DNA-SEQUENCE [J].
CARNINCI, P ;
GUSTINCICH, S ;
BOTTEGA, S ;
PATROSSO, C ;
DELSAL, G ;
MANFIOLETTI, G ;
SCHNEIDER, C .
NUCLEIC ACIDS RESEARCH, 1990, 18 (01) :204-204
[7]  
COHEN AS, 1990, IN PRESS J CHROMATOG
[8]  
DROSSMAN H, 1990, IN PRESS J CHROMATOG
[9]   A TURNING POINT IN CANCER-RESEARCH - SEQUENCING THE HUMAN GENOME [J].
DULBECCO, R .
SCIENCE, 1986, 231 (4742) :1055-1056
[10]   EFFECT OF ELECTRIC-FIELD SWITCHING ON THE ELECTROPHORETIC MOBILITY OF SINGLE-STRANDED-DNA MOLECULES IN POLYACRYLAMIDE GELS [J].
LAI, E ;
DAVI, NA ;
HOOD, LE .
ELECTROPHORESIS, 1989, 10 (01) :65-67